diff --git a/pkgs/applications/science/math/speedcrunch/default.nix b/pkgs/applications/science/math/speedcrunch/default.nix
index 334423660a0..33de9cd0d97 100644
--- a/pkgs/applications/science/math/speedcrunch/default.nix
+++ b/pkgs/applications/science/math/speedcrunch/default.nix
@@ -31,6 +31,6 @@ stdenv.mkDerivation rec {
     '';
     maintainers = with maintainers; [ gebner ];
     platforms = platforms.all;
+    broken = builtins.compareVersions qtbase.version "5.8.0" >= 0;
   };
-
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 96e4840b35b..923676aa154 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -17613,7 +17613,7 @@ with pkgs;
 
   yacas = callPackage ../applications/science/math/yacas { };
 
-  speedcrunch = libsForQt5.callPackage ../applications/science/math/speedcrunch { };
+  speedcrunch = libsForQt57.callPackage ../applications/science/math/speedcrunch { };
 
   ### SCIENCE / MISC